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K4OKK

Active1x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderHARDEN, CARRIE E

License ClassTechnician

Min. Class RequiredGeneral

LocationRANCHO SANTA MARGARI, CA

Grant DateJul 28, 2026

Expiration DateJul 28, 2036

K4OKK is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by HARDEN, CARRIE E in RANCHO SANTA MARGARI, CA. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Rodriguez, Edward on Jul 10, 2026. K4OKK has 5 recorded FCC license history events.

CW & Voice Analysis

Morse Code

-.- ....- --- -.- -.-

CW Weight: 37 units(Moderate)

Voice Phonetics

Kilo Four Oscar Kilo Kilo

Readability: 8/10(High readability)

License History

License IssuedJul 28, 2026
Vanity Callsign GrantedJul 28, 2026
License ExpiredJun 21, 2018
License RenewedMay 4, 2006
Tax ID (TIN) AddedMay 2, 2006

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Rodriguez, EdwardFiled Jul 10, 2026
Not awardedFCC ↗

Search external databases

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← K4OKI K4OKO →

FCC data as of Sep 4, 2026

K4OKK FCC Vanity Status: 1 Competing Application & History